Kaka may be forced to leave Real Madrid when transfer window opens in January

Real Madrid forward Kaka is unsure if he will still be at the Bernabeu past January after struggling to force his way into the first team.

The Brazilian playmaker, who joined from AC Milan in 2009, has suffered from a long-standing knee injury as well as a lack of form. Kaka has made just one league start this campaign and even then he was replaced at half-time.

Last night the 30-year-old made a rare start and was named as captain as Real beat Ajax 4-1 in the Champions League. Kaka scored the third, but his future at the club is unclear with LA Galaxy said to be interested.

Former Galaxy and Real midfielder David Beckham, who played with Kaka at AC Milan, talked up a move for the Brazilian, saying: "We'd welcome any player of his skill and calibre at Galaxy."

However, Kaka, who still has three years left to run on his deal with Real, claims there has been no contact although admits he could soon leave last season's Primera Division champions.

"No, now I have (heard) nothing (from LA Galaxy). "I keep doing my job to stay in Madrid. Then, to see what happens and what the club wants."

He concluded by saying: "I do not know what will happen. I have a contract until 2015.

"The club called me (in the summer) and we did not find a solution. What January? I do not know, I hope to know what the club wants. If they choose a solution, I'm open to talk."